ITV News' Science Correspondent Martin Stew meets the team behind Sentinel, a prototype habitat with plans to house people ...

Submarines are becoming an innovative research ... This mission involved 25 volunteers living in cramped quarters, simulating conditions similar to those experienced by astronauts.

Personnel often just wore shoes and underwear while living in the submarine, where temperatures could exceed 100 degrees Fahrenheit during the warmer months. The U-505 only had two bathrooms ...

many appreciated getting a firsthand look at the tight living quarters sailors had to endure while stationed on this submarine. Others enjoyed the self-guided audio tours covered by museum and ...